Belcher's Gull vs Black-tailed Gull
Larus belcheri compared with Larus crassirostris
Side-by-Side Comparison
| Attribute | Belcher's Gull | Black-tailed Gull |
|---|---|---|
| Scientific Name | Larus belcheri | Larus crassirostris |
| Order | Charadriiformes | Charadriiformes |
| Family | Laridae | Laridae |
| Conservation Status | Least Concern | Least Concern |
| Length | — | — |
| Wingspan | 73.0 cm (28.7 in) | 72.8 cm (28.7 in) |
| Weight | 642.5 g (22.66 oz) | 675.0 g (23.81 oz) |
| Diet | -- | -- |
| Clutch Size | 1-3 | 2-3 |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Least Concern
Belcher's Gull
Least Concern
Black-tailed Gull
About These Birds
Belcher's Gull
Belcher's Gull, 49–52 cm, is endemic to the Humboldt Current coast of Peru and northern Chile. Black mantle, white body, yellow bill with red and black band. Piscivore and scavenger; closely associated with fishing ports and anchovy-rich upwelling waters. Resident along its narrow coastal range.
Black-tailed Gull
Black-tailed Gull, 44–48 cm, is common on East Asian coasts from Russia to China, Japan, and Korea. Grey mantle, white body, yellow bill with red spot and black subterminal band, yellow legs. Omnivore; very vocal, known as the 'cat gull' for its mewing calls. Migratory; winters south to Vietnam.